n.

1. （总称）同行朋友；会友[G]
   the banking fraternity

   银行界的同僚

2. 【美】大学的兄弟会[C]
3. 兄弟关系；友爱[U]

n.

1. [treated as sing. or pl.] a group of people sharing a common profession or interests.
   ▸N. Amer. a male students' society in a university or college.
   ▸a religious or Masonic society or guild.
2. friendship and mutual support within a group.